you are not accurate at all, like someone said, looking at todays price is not the same as looking at future, you can not predict price, when will you realise that ? this is not sports and you know your odds (proximately) and put a bet on whatever you think might win. This is financial market, where price is only about supply and demand. We can estimate supply, but you will never know the demand.
Historic prices are absolutely an indicator of future prices. This system is not perfect and it will certainly be wrong sometimes, but it is absolutely possible to predict prices reasonably well. Prices fluctuations aren't random - they occur in patterns. Regardless of what causes these patterns, they are recurring patterns which means they are predictable. Just because you and I can't see these patterns when we look at the data doesn't mean prices are random. And anything that is not random is predictable (i.e. everything). The neural network I have here certainly has room for improvement and I'm working on doing that now, but it still does reasonably well - better than any human would come close to doing.